Ronald Coase argued that clearly defined laws would give parties incentive to

• A. Internalize externalities
• B. Reduce transaction costs
• C. Expand government intervention
• D. Create litigation

Answer: (A)

The main idea is that clearly defined property rights give people a direct incentive to bargain over spillover effects, so externalities are internalized through private negotiation. When laws spell out who owns what and what rights each party has, those affected by a positive or negative externality can bargain to reach a deal that reflects the true costs and benefits of their actions. If transaction costs are low, the bargaining leads to an outcome where private decisions align with social costs and benefits, making the external effect part of the market price. So the incentive is to internalize externalities—to incorporate the external costs or benefits into private decisions through voluntary exchange. While clearer laws can also lower the costs of bargaining, that’s the enabling condition, not the main incentive.